Links of interest from September 14, 2011 through September 17, 2011:

Bash prompt tricks and tips
I do love my bash prompts, and ther are some neat tricks in here.
Responsive Design Testing
Handy tool for quickly viewing a web page as it will appear on a range of mobile devices from 240px to 1024px.
Facebook and CAPS-LOCK: Unintuitive security
Interesting post on the case-insensitive Facebook password issue. Written by Jeff, whom I’ve met, and can tell you is insanely smart.
From brainstorm to outline: Why I use OPML
Another great Macworld post from David Sparks.
Markdown reference links in TextMate
Some great tricks from Dr. Drang for more TextMate Markdown happiness.